1381299200 has 132 divisors (see below), whose sum is σ = 3472367040. Its totient is φ = 544727040.

The previous prime is 1381299193. The next prime is 1381299223. The reversal of 1381299200 is 29921831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2022059 + ... + 2022741.

Almost surely, 2^1381299200 is an apocalyptic number.

1381299200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1381299200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1736183520).

1381299200 is an abundant number, since it is smaller than the sum of its proper divisors (2091067840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1381299200 is an equidigital number, since it uses as much as digits as its factorization.

1381299200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 1381299200 is about 37165.8337724314. The cubic root of 1381299200 is about 1113.6855551479.

The spelling of 1381299200 in words is "one billion, three hundred eighty-one million, two hundred ninety-nine thousand, two hundred".